In short: the correct fluid depends on your transmission. If your 2012 Altima has the CVT, use Nissan CVT Fluid NS-2. If it has the 5‑speed automatic, use Nissan Matic S automatic transmission fluid.
The 2012 Altima lineup includes two main drivetrains: a 2.5-liter engine paired with a CVT (Xtronic CVT) and a 3.5-liter V6 paired with a traditional 5-speed automatic. Using the wrong fluid can lead to poor shifting, clutch wear, or transmission damage, so it’s important to confirm which transmission your car has before topping up or changing fluid.
Transmission options and approved fluids
Fluid choice is determined by which transmission your car uses. The following are the commonly specified fluids for the 2012 Altima’s two transmissions:
- CVT with the 2.5L engine: Nissan CVT Fluid NS-2. Use NS-2 or an aftermarket fluid that explicitly states compatibility with NS-2 CVT fluid.
- 5-speed automatic with the 3.5L V6: Nissan Matic S automatic transmission fluid. Do not substitute with Dexron/Mercon unless your manual specifically allows it.
Always verify the exact specification for your vehicle by checking the owner’s manual, the transmission identification plate in the engine bay, or by contacting a Nissan dealer. Some regional builds or model years can have slight variations, but NS-2 for CVTs and Matic S for 5ATs are the standard references for the 2012 Altima.
How to identify which transmission your Altima has
To avoid guessing, identify your transmission type first. The 2012 Altima 2.5 model typically uses the Xtronic CVT, while the 3.5L V6 model uses a traditional 5-speed automatic. Look for the “Xtronic CVT” badge on the vehicle or consult the VIN/owner’s manual. The door jamb sticker or the service manual will also list the transmission type for your specific car.
Maintenance considerations and tips
Use only fluids recommended by Nissan for your particular transmission. When changing transmission fluid, follow the intervals and procedures outlined in the owner’s manual, and consider a professional service if you’re not familiar with CVT fluid changes. Using the wrong fluid or an incorrect change procedure can affect shifting quality and long-term transmission health.
Summary
For a 2012 Altima, use Nissan CVT Fluid NS-2 if your car uses the CVT, or Nissan Matic S ATF if it uses the 5-speed automatic. Confirm your transmission type via the owner’s manual or VIN-specific notes, and stick to the Nissan-recommended fluids to protect shifting performance and the longevity of the transmission.